{"product_id":"mitutoyo-378-401-wli-plan-apo-10x-mirau-type","title":"Mitutoyo 378-401 WLI Plan Apo 10x Mirau Type","description":"\u003cp\u003eThe WLI Plan Apo 10X is a precision plan apochromat objective developed for white light interferometry (WLI) applications. Designed to integrate seamlessly with the WLI Unit, this objective enables accurate surface profiling and high-resolution topography measurement.\u003c\/p\u003e\n\u003cp\u003eIts advanced optical design incorporates a beam splitter and reference mirror directly inside the objective, enabling compact and stable interferometric measurements without external components. An interference fringe adjustment mechanism is included as standard, allowing precise alignment and optimisation during operation.\u003c\/p\u003e\n\u003cp\u003eThe compact and lightweight construction, combined with a 60 mm parfocal distance, ensures improved integration into interferometry systems while maintaining a 6 mm working distance. With a high numerical aperture of 0.38, the objective provides excellent resolution and measurement performance.\u003c\/p\u003e\n\u003cp\u003eOptimised for the visible spectral range, the WLI Plan Apo 10X is ideal for precision surface analysis, metrology, and interferometric inspection applications.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for white light interferometry (WLI)\u003c\/p\u003e\n\u003cp\u003eBeam splitter and reference mirror integrated inside the objective\u003c\/p\u003e\n\u003cp\u003eInterference fringe adjustment mechanism included as standard\u003c\/p\u003e\n\u003cp\u003eHigh numerical aperture (0.38) for improved measurement resolution\u003c\/p\u003e\n\u003cp\u003eCompact and lightweight design\u003c\/p\u003e\n\u003cp\u003eParfocal distance: 60 mm for compact optical system integration\u003c\/p\u003e\n\u003cp\u003eHigh-quality Plan Apochromat optical design\u003c\/p\u003e\n\u003cp\u003eInfinity corrected\u003c\/p\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003cp\u003eModel: WLI Plan Apo 10X\u003c\/p\u003e\n\u003cp\u003eMagnification: 10x\u003c\/p\u003e\n\u003cp\u003eWorking distance: 6 mm\u003c\/p\u003e\n\u003cp\u003eNumerical Aperture (N.A.): 0.38\u003c\/p\u003e\n\u003cp\u003eResolving power: 0.72 µm\u003c\/p\u003e\n\u003cp\u003eFocal length (f): 10 mm\u003c\/p\u003e\n\u003cp\u003eParfocal distance (P.D.): 60 mm\u003c\/p\u003e\n\u003cp\u003eApplicable tube lens focal length: 100 mm\u003c\/p\u003e\n\u003cp\u003eField of view (2\/3\" camera): 0.66 × 0.88 mm\u003c\/p\u003e\n\u003cp\u003eField of view (WLI Unit): 0.73 × 0.56 mm\u003c\/p\u003e\n\u003cp\u003eObservation mode: Interferometer\u003c\/p\u003e\n\u003cp\u003eGlass compensation: No\u003c\/p\u003e\n\u003cp\u003eLaser applications: No\u003c\/p\u003e\n\u003cp\u003eSpectral range: Visible (VIS)\u003c\/p\u003e\n\u003cp\u003eMount: RMS (20.32 mm × 36 TP)\u003c\/p\u003e\n\u003cp\u003eOuter diameter: 40 mm\u003c\/p\u003e\n\u003cp\u003eMirror tube length (excluding mounting screws): 54 mm\u003c\/p\u003e\n\u003cp\u003eMass: 220 g\u003c\/p\u003e","brand":"Mitutoyo","offers":[{"title":"Default Title","offer_id":56437813117308,"sku":"378-401","price":3501.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/9428\/5114\/files\/Mitutoyo378-401WLIPlanApo10xMirauType.jpg?v=1772649849","url":"https:\/\/www.hroberts-di.com\/products\/mitutoyo-378-401-wli-plan-apo-10x-mirau-type","provider":"H Roberts \u0026 Sons","version":"1.0","type":"link"}